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30122020230 = 2354992012159
BaseRepresentation
bin11100000011011010…
…011000110110000110
32212202020220011122220
4130003122120312012
5443142214121410
621500551233210
72114310642651
oct340332306606
985666804586
1030122020230
11118581056a5
125a07978806
132ac0748713
14165a72c898
15bb46cd070
hex703698d86

30122020230 has 32 divisors (see below), whose sum is σ = 72437760000. Its totient is φ = 8016437472.

The previous prime is 30122020193. The next prime is 30122020249. The reversal of 30122020230 is 3202022103.

It is a super-2 number, since 2×301220202302 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991110 + ... + 1021049.

It is an arithmetic number, because the mean of its divisors is an integer number (2263680000).

Almost surely, 230122020230 is an apocalyptic number.

30122020230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30122020230 is an abundant number, since it is smaller than the sum of its proper divisors (42315739770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30122020230 is a wasteful number, since it uses less digits than its factorization.

30122020230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012668.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 30122020230 its reverse (3202022103), we get a palindrome (33324042333).

The spelling of 30122020230 in words is "thirty billion, one hundred twenty-two million, twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 499 998 1497 2495 2994 4990 7485 14970 2012159 4024318 6036477 10060795 12072954 20121590 30182385 60364770 1004067341 2008134682 3012202023 5020336705 6024404046 10040673410 15061010115 30122020230